Receptacle closure



A. T. THOMPSON RECEPTACLE CLOSURE 'Filed Oct. 26, 1937 awe/rm 0777]Patented Oct. 7, 1941 UNITED- STATES PATENT OFFICE RECEPTACLE "CLO SURE-Albert '1. Thompson, New Orleans, Application October 26, 1937, SerialNo. 171,151

1 Claim.

The invention relates to receptacle closures of the type wherein theclosure is disposed within the"- chamber of the receptacle and adaptedto close a filling opening, and has for its object to provide meanswhereby, when the closure is forced to closed position against a gasketon the inside of the receptacle around the filling opening, a leakproofconnection is formed.

A further object is to provide cooperating holding means for the closurecarried by the closure and receptacle, whereby, -when the closure isforced to closed position by a vigorous pull thereon, the gasket will becompressed and. the closure held in closed position by spring engagingmeans.

A further object is to provide the closure with a plurality of armsadapted to be received between U-shaped spring holding members carriedby the receptacle.

A further object is to provide spring snap elements, carried by thereceptacle, and adapted to be received in recesses in the closure,preferably spherically shaped for holding the closure in closedposition.

A further object is to provide the closure with a headed extension onwhich a holding bar is pivotally mounted, and bayonet slots in the wallof the filling opening for receiving the ends of the bar, and holdingthe closure in closed position with the gasket compressed.

With the above and other objects in view the invention resides in thecombination and arrangement of parts as hereinafter set forth, shown inthe drawing, described and claimed, it being understood that changes inthe precise embodiment of the invention may be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawing: Figure 1 is a view in elevation of the receptacle.

Figure 2 is a vertical transverse sectional view through the lower endof the receptacle.

Figure 3 is a horizontal sectional view taken on line 3-3 of Figure 2.

Figure 4 is a view in elevation of another form of receptacle. 7

Figure 5 is a vertical transverse sectional view through the lower endof the receptacle shown in Figure 4.

Figure 6 is a horizontal sectional view taken on line 6--6 of Figure 5.

Figure 7 is a detail collective sectional view of a portion of theclosure and a portion of the bottom of the receptacle, showing the partsin position for assembly.

Figure 8 is a view in elevation of another form of the invention,showing the receptacle.

Figure 9 is a vertical transverse sectional view through the lower endof the receptacle, shown in Figure 8.

Figure 10 is a bottom plan view of the receptacle.

Figure 11 is a detail perspective View of one side of the fillingopening, showing the bayonet slot therein.

Referring to the drawing and particularly to Figures 1 to 3 inclusive,the numeral l designates the receptacle and 2 the bottom thereof and 3 arelatively large filling opening in the bottom 2.

Disposed within the chamber 4 of the receptacle is a closure 5, whichmay be of the captive or noncaptive type, and which closure is providedwith a threaded tool receiving aperture 6, in which a tool, for instancea bolt is placed for snapping the closure to closed position. Theclosure 5 is provided with outwardly extending lugs 1, which arereceived and held between the spring arms 8, arranged in pairs aroundthe filling opening. When the closure is snapped to closed position, itcompresses a gasket 9 around the filling opening and forms a leakproofconnection. When the operator desires to fill the receptacle, a vigorouspush inwardly is imparted on the closure 5, thereby releasing the samefrom between the spring arms 8, and the receptacle can be cleaned,sterilized and refilled. It will be noted that when the closure is inclosed position, the spring arms 8, which flare outwardly at their upperends, will grip opposite sides of the members I, and hold the gasketcompressed.

Referring to Figures 4 to 7 inclusive wherein a modified form is shown,in this form the closure 50. is provided with spherically shapedapertures In, which receive the headed snap members II carried by thebottom 2, and which spring snap members are spherically shaped andprovided with threaded portions I2, threaded into the inner side of thebottom 2. It will be seen that when a tool is threaded into the aperture6, and the closure 5a snapped to position over the filling opening 3,the snap heads II will be compressed and will enter the apertures l0,and will expand therein at the same time the gasket 9 is compressed,hence it will be seen that a leakproof connection will be formed aroundthe filling opening; otherwise the operation and construction is thesame as shown in Figure 2.

Referring to the modified form shown in Figures 8 to 11, in this formthe closure 5b is provided with a headed extension I3, which extendsthrough the filling opening 3 and has pivoted thereon a cross bar I4,the ends of which are received in the portions l5 of the bayonet slotswhen the closure is moved to closed position, and when the gasket 9 iscompressed, the pivoted bar is rotated, and the ends will move into thehorizontal portions [6 of the bayonet slots, thereby holding the closurein closed position.

From the above it will be seen that closures of the internal type areprovided for receptacles which may be easily and quickly snapped intoclosed or open position, and when in closed position do not depend uponinternal pressure to form a leakproof connection. It is to be understoodthe closures may be used in connection with pressure receptacles.

The invention having been set forth what is claimed as new and usefulis:

The combination with a receptacle bottom, a closure within thereceptacle chamber and over a filling opening in said bottom, of meansfor holding said closure in closed position, said means comprising aheaded extension carried by the closure and extending into the opening,a locking bar pivotally mounted on the headed extension, bayonet slotscarried in the wall of the filling opening and adapted to receive andhold the closure in closed position, the entrance passage of the bayonetslot being inwardly disposed, said headed member and locking bar beingen- 15 tirely disposed within said opening.

ALBERT T. THOMPSON.

